PG&E Officials Grilled About Automatic Shut Off Valves PDF Print E-mail
PG&E officials were grilled Tuesday about the lack of automatic shutoff valves in much of their natural gas pipeline system, as a three-day hearing into the San Bruno explosion began at the National Transportation Safety Board.

Federal investigators cited a 2006 memo by a senior PG&E engineer that said remote controlled or automatic shutoff valves would have "little or no effect on increasing human safety or protecting properties."

Source: Mercury News

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